5,13-Dihydro-5-oxobenzo(e)(2)benzopyrano(4,3-b)indole 5-Oxo-5,13-dihydrobenzo(e)(2)benzopyrano(4,3-b)indole 5-Oxo-5H-benzo(e)isochromeno(4,3-b)indole 7374-66-5 BRN 0813903 Benzo(e)(2)benzopyrano(4,3-b)indol-5(13H)-one Benzo(e)(2)benzopyrano(4,3-b)indol-5-one, 5,13-dihydro- R 47